Imagebuilder snapshot doubt

sorry for such a basic qustion, how often should i re-download imagebuilder file from snapshot page of a/my device? usually i use it for stable so is just download and forget.. i would like to test something with snapshot and i noticed that imagebuilder file gets updated almost every day like images.. this got me a bit confused.. is it download and forget like stable or?? thanks!

typically, you would download snapshot-ib each fresh day/build as it pulls in packages tied to it

May want to check the git logs to see if whatever caused the new bot generation is of any interest / relevance.